Motor-plow.



n. STOCK, www n. mhum. EXEC-umn.

MOTOR PLOW.

Amlcmom mnu om. as, woe.

Li., y Patented Aug. 31, 1915.

3 SHEETS-SHEET 2.

orzzey.

'RoB-iii'irfszioci, B EiiiJiN, GERMANY; HANsMLLEii, vnxiiiCirr'oitlf-or"v SAID srQK, nE'cEAsED, AssiGNoR 'ro srooK MOTORPFLUG GESELLSCHAFT'ivirrfignscHRNxrrnn ;HAFTUNG, koraanRLIN, GERMANY, A CORPORATION or GEB-MANN@ f pp'li-cationled October 19 1909. Serial No. 523,446.

ject ofthe' German Emperor, and resident of Berlin, Geiii'nany, have linvented certain neiv "and useful "Improvements in Motor-Flows,-

offl Whiclrwthe fol-loving is a specification.

My inyentioniela'tes to motor vehicles and particularly.'to"plo\vs, and has for its'object '-toprovd'e'a selfspropelled ploiv of simple, compact' and comparatively light construction'"requirii'ige';'no special skill or itsoperavtion'.

' ifa'ce' view-@ i arbverlinovable to allow access `rtoi-o'i'ieothezgears;l3`ig. 2' is a plan View of YAthe-"plow,Wi'tliparts in section; Fig. 3 is av Vdetailof .tliefsteeringfinechanism, and FigI l isa? detail offthefconnection between motor 'fand drive'shaftlf fgTo'l the oblique' beam ll of the elongated tiame f 2 areseciired the soil-Working devices 1'sucl'iasvploW- 'shares-3, the 'supports 4 of `iila'ieli-fairefhold 'against saidbeam by clamp- I' Ying-platsf-g-'joonnected with tlie beam by screwed "Thejsh'ares may be adgusted up "on-'doivnand secured in position' by pins 7. The lower portions of the .shares may be rlinedfili-the:ilsualflvay, as indicated at 8a'.

l Thevframe-'QWith-the internal combustion engine 8, the shares?) and the other -parts'arried1 by theffram'e, is balanced relatively t'rjthe'laxlesf), 10 of the drive Wheels 11,12 respeotivelygthat is to say, the Weight of the frame Aand of 'the parts carried thererear 'of fsaid aXlessf I" prefer to makeach of' fes-ed .The drivef 1I, 4are'provided'with 17, 18 carrying the bevel pinions 19, 2 0 reet 4i. .i

If the pedal 397is moved-forward asiirispectively of'a differential' gear of any-apa proved construction. v-Theseshafts-117, `18

Specification of Letters Patent. Patented together VWit-h the differentialgear-*connect- 1 ing them, .may 'be termed adiiie'iential'-shaft. For instance, the pinionsl9,20 maybe in mesh with the toothed'vvheels"21,222, the axles or shafts Q3 and ftofavliich-are mounted or jou'inaled in' theframel "Thef" latter isconnected rigidly/With thefbyel Wheel 26, through thev'hub' l'of \vhich`=' .'tl'ie shaft 18 passes loosely. 3fThe bevel'Wheel1 2 6' meshes ivitli a bevel pinion Q18" on thel drive ted differentially` (inl the ivel-'lLknoivn Way) .v their centers of curvatu'ieitloca-tedupbifthe motor with the drive Wheels, or disconnect it l 4therei'rom as desired, I havefprovided-af 'tivof' armed lever 3l,A ffulcrumediatf'38' 'onf-the .frame 2 and engaging afgroovedfsle'eve .82 .rigidly connected with thedisl 29. flie'cofn- `nection is of a Well-lnoivi character, allo-'W-y J a coupling. disk i ing the 'sleeve' to turn :freelyin' relation"to"-J the lever, butV compellingft-'liesleeve a'iiddisl to move lengthwise ofy the shaftl 27 ,when the shifting leyeiBlv swings-'ori its"'f i1` lcriini33. The lever is connected "piyotallyv at -Sf with di'cated by the arrow inf-Figlf, therh'ook'l() kzfio'dapeae. iraniens-'fuma the rod 36, the other :end frfjvhi'chhas" al", 'i

Will be held by the pa'vvl' by, gravity. ,The forward inoiemn't'f of' the operati've'engagenient by1 ;li'eja'ct`1on` of a spring 43.

The drive shaft 27 a-lines with the'motor by the cover plates 64, 65.

, For steering the plow, the 25 f Shaft -31, both extending lengthwise of the vehicle frame. It will be'observed (see Fig. 2) that the engine or motor 8 is located forward lof the drive wheel axles 9 and 1 0, while-the differential gearing is located in the rear of such axles. I thus not only gain space for the proper placing of the clutch-disks'. 29,30 and of the mechanism for operating the shifting clutch disk 29, butl further secure a better balancing of wheel axles.

The drive wheels 11, 12 are provided at their peripheries with projections 44, 45 each arranged at an acute angle to the wheels periphery, measured in a direction contrary to 1s connected rigidly with a sleeve 49 adjustably up' and down along the vertical carrier or rock shaft 50 and secured after adjustment by suitable means such as set screws 51.

The steering wheelis provided with a sharp circumferential flange 52 exerting the necessary lateral pressure on the soil to enable the plow to be steered readily.

The swinging of the steering wheel is effected by means of an arm 53 extending from the upper end of the rock shaft50 and pivotally connected at l55 with the steering rod l54. The latter is connected pivotally at its rear end 57 with a crankarm 58 pro- 4je'cted from a horizontal shaft 59 journaled in the Aame 2. The shaft further carries a worm wheel 60 meshing with a worm 61 ".onthe steering rod 62 provided with the customary hand wheel 63.

'The gears 15 secured 4to the drive wheels 11, 12, and the pinions 16meshing with said gears, are thoroughly protected from dust are carried by the wheels, being 'secured .rigidly to the spokes, while the plates are relatively stationary, being carried by the axles 9, 10 of the drive wheels, and the shaftsl?, 18 of the driving pinions 16 extend through the cover plates 65 and help -to keep them in position. Each coveriplate feo . surfacel of the gear 15.

65 has'a perpendicular flange 66 projected outward, that is, toward the plate 64, and 'containing a packing ring 67 of felt or other suitable material engaging the outer As it may be desirable to have access to the driving pinions 16 without removing the theentirestructure relatively to the drivev The plates 64' entire plate 64, I may, as shown in Fig. 1,

provide a removable cover'section 5 6 normally closing a suitable opening in the plate 64, -said opening being preferably of about the saniesize as the pinion 16. To

prevent loss of the cover, it may be hinged tothe plate, vas at 56a, and it may be held closed normally by means of a latch 56, pivoted at 56c and adapted for engagement with a keeper 64a on the plate 64.

In operation, the drive wheel 12 will run in the furrow, while the drive wheel 11 and the steering wheel 47- will travel on the unplowed land. The individual adjustability of the drive wheels enables the' plow to be readily adapted to variousconditions of soil and also to vary the depth of the furrow, which may be further varied by the individual adjustment of the shares 3. The

differential gearing allows one drive wheel or' the other .to receive more power, as may be required by the uneven resistances occurring in practice, and also enables one wheel to rotate independently of the other when the plow isturned about. The vertical adjustment of the steering wheel enables the rear end of the frame, with the plow shares, to be .raised out of contact with the ground, as shown in Fig. 1, thus facilitating the travel of the machine over the ground when it is not desired to plow. The balancing of the frame relatively to the axles 9, 10 secures a more uniform running of the plow and reduces the power required for its operation. The clutch 29, 30, being of an elastic character owing to the use of the spring 43, will give in case the shares should strike a heavy stone or other serious obstacle, thus minimizing the danger of breakage. The shares being removable individually, the plow may be operated with a reduclzed number of shares in very diiicult soi -While I'have shown the steering wheel arranged in front, this is by no means essential to my invention.

Various modifications may be made without departing from the nature of my in- 'vention as set forth in the appended claims.

' I claim as my invention:

1. A motor vehicle comprising a frame, a motor carried thereby, a transverse. differential shaft also carried by the frame and adapted to be driven by said motor, and

-drive wheels connected withsaid shaft and journaled on the frame independently at points located between the motor and the differential shaft, the weight of the frame portion and of the parts carried thereby, forward of the axes of said wheels, being approximately the same as the weight of the frame Aportion and of the parts carried thereby, in the rear of said axes.

2. A motor vehicle comprising a frame, a motor thereon, drive wheels journaled on said frame independently, and di'erential gearing interposed betweenl said motor and the-drive wheels, the weighty ofthe frame portion and of the parts carried thereby, forward of the axes of said wheels, being approximately 4the same as the weight'of vthe frame portion and of the Darts carried thereby, in -the rear of said axes.

A-1notor vehicle comprising a frame,

drive wheels journaled`tl1ereon independ ently, a motor carried by the' frame forward v of the drive wheels, and a transverse dierthereby, orwardof the axes of said wheels, being approximately the same-as the weight ential shaft carried by theframe in the rear of the drive wheel centersand forming part 'of an voperative 'connection between said wheels'and the motor, .the weight of the frame portion and of the parts carried of the frame portion land of the parts carried thereby, in the rear of said axes.

4. A motor vehicle comprising a frame,

a-mot`or thereon, `the shaft of said motor eX'- tending lengthwise of the fra1ne,' drive wheels journaled on the frame independ- Aently in the rear of the motor, a transverse differential" shaft for driving said wheels,

located in the rear of the wheel centers, a .drive shaft actuating said differential shaft and alined' with the motor shaft,..and clutch nmechanism for -connecting said alining Shafts, the Weight of the frame portion and axes of said wheels," being approximately peeiication in -the presence loftwo sub-- scribing witnesses. ROBERT STOCK.

Witnesses: y

HENRY HAsPnR, WonnnMAR .of the parts carried thereby, forward of the 

